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Title: A chlorinated polymer promoted analogue co-donors for efficient ternary all-polymer solar cells

Abstract

The efficient ternary all-polymer solar cells (PSCs) are designed and fabricated, using a polymer acceptor of NDP-V-C7 and analogue co-donors containing a chlorinated polymer PBClT and classical PTB7-Th. PBClT and PTB7-Th possess very similar chemical structure and matched energy levels to form the cascade of the co-donors. Meanwhile, benefiting from those analogous polymer structures, there is little influence of the morphology in blend film compared to their pristine polymer films. The binary PBClT:NDP-V-C7 devices exhibit a high open-circuit voltage (Voc) due to the deep HOMO level of PBClT. The Voc of all-PSCs could be finely manipulated by adjusting the content of PBClT in blend film. The ternary all-PSCs have the more balanced charge mobility and prolonged carrier lifetime compared to the binary devices. The PBClT also help improve the miscibility of ternary blend and suppress crystallization in films, bringing about favorable morphology with appropriate orientation and surface roughness in blend film. With the optimal processing, the champion ternary all-PSCs obtain a high PCE of 9.03%, which is about 10% enhancement compared to that of binary device. Finally, the results indicate that the ternary approach using analogue co-donors is a practical method to enhance the performance of all-PSCs.

Authors:
 [1];  [2];  [1];  [1];  [3];  [2];  [1]
  1. Southern Univ. of Science and Technology, Shenzhen (China)
  2. Peking Univ., Beijing (China)
  3. Argonne National Lab. (ANL), Lemont, IL (United States); The Univ. of Chicago, Chicago, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
South University of Science and Technology of China (SUSTC); National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1496595
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Science China Chemistry
Additional Journal Information:
Journal Volume: 62; Journal Issue: 2; Journal ID: ISSN 1674-7291
Publisher:
Science China Press and Springer
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; all-polymer solar cells; analogue co-donors; carriers transport; chlorination; ternary blend

Citation Formats

Chen, Hui, Guo, Yikun, Chao, Pengjie, Liu, Longzhu, Chen, Wei, Zhao, Dahui, and He, Feng. A chlorinated polymer promoted analogue co-donors for efficient ternary all-polymer solar cells. United States: N. p., 2018. Web. https://doi.org/10.1007/s11426-018-9371-0.
Chen, Hui, Guo, Yikun, Chao, Pengjie, Liu, Longzhu, Chen, Wei, Zhao, Dahui, & He, Feng. A chlorinated polymer promoted analogue co-donors for efficient ternary all-polymer solar cells. United States. https://doi.org/10.1007/s11426-018-9371-0
Chen, Hui, Guo, Yikun, Chao, Pengjie, Liu, Longzhu, Chen, Wei, Zhao, Dahui, and He, Feng. Fri . "A chlorinated polymer promoted analogue co-donors for efficient ternary all-polymer solar cells". United States. https://doi.org/10.1007/s11426-018-9371-0. https://www.osti.gov/servlets/purl/1496595.
@article{osti_1496595,
title = {A chlorinated polymer promoted analogue co-donors for efficient ternary all-polymer solar cells},
author = {Chen, Hui and Guo, Yikun and Chao, Pengjie and Liu, Longzhu and Chen, Wei and Zhao, Dahui and He, Feng},
abstractNote = {The efficient ternary all-polymer solar cells (PSCs) are designed and fabricated, using a polymer acceptor of NDP-V-C7 and analogue co-donors containing a chlorinated polymer PBClT and classical PTB7-Th. PBClT and PTB7-Th possess very similar chemical structure and matched energy levels to form the cascade of the co-donors. Meanwhile, benefiting from those analogous polymer structures, there is little influence of the morphology in blend film compared to their pristine polymer films. The binary PBClT:NDP-V-C7 devices exhibit a high open-circuit voltage (Voc) due to the deep HOMO level of PBClT. The Voc of all-PSCs could be finely manipulated by adjusting the content of PBClT in blend film. The ternary all-PSCs have the more balanced charge mobility and prolonged carrier lifetime compared to the binary devices. The PBClT also help improve the miscibility of ternary blend and suppress crystallization in films, bringing about favorable morphology with appropriate orientation and surface roughness in blend film. With the optimal processing, the champion ternary all-PSCs obtain a high PCE of 9.03%, which is about 10% enhancement compared to that of binary device. Finally, the results indicate that the ternary approach using analogue co-donors is a practical method to enhance the performance of all-PSCs.},
doi = {10.1007/s11426-018-9371-0},
journal = {Science China Chemistry},
number = 2,
volume = 62,
place = {United States},
year = {2018},
month = {11}
}

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    Works referencing / citing this record:

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